I don’t have this error. I have this when I try :
<h2>The importer is working</h2>
<i>Status: <span id=”import-status”>Preparing for add media…</span></i>
<div id=”importStatus”>0% Complete</div>
</div> Sorry, there has been an error.
This does not appear to be a WXR file, missing/invalid WXR version number